祈使句用法详解：表禁止

祈使句用法详解：表禁止

■典型例句

Keep off the grass! 请勿践踏草地!

Do not touch these wires. 请勿接触电线!

Do not feed the animals! 不许给动物扔食物!

Do not feed the lions.  请勿向狮子投喂食物!